Speaker bio: Sarah is a software engineer specialising in data engineering, backend systems, and scalable system design. She has extensive experience across industries such as banking, insurance, developer security, and digital advertising. Sarah excels in tackling challenges of scale - not just in terms of load or data size, but also data complexity. In addition to her technical work, Sarah is an active contributor to the tech community, regularly running talks, workshops, and training sessions through initiatives like Tech Risers Women, Women in Data, and Ladies of Code.